Aquatix 8421 is a rheology-modifying wax emulsion to improve orientation of effect pigments in water-borne systems. It reduces cloudiness/mottling and provides anti-settling properties during storage and application. Compared to clays and acrylic thickeners, it is easier to handle and incorporate. It is less sensitive to co-solvents than polyurethane-based thickeners. It can improve the brilliance of effect pigment slurries that are co-solvent free. The material is an emulsion of a modified ethylene-vinyl-acetate (EVA) copolymer wax. Pre-dilution with water is not required when processing. Due to its acidic nature, it reduces the pH-value.
BYK-Chemie GmbH, Wesel, Germany; +49 281-670-0; www.byk.com/additives